Derby Talk

Derby Talk is a forum for Pinewood Derby, Awana Grand Prix, Kub Kar Rally, Shape N Race Derby, Space Derby, Raingutter Regatta and other similar races where a child and an adult work together to create a race vehicle and a lot of fun and memories

Does anyone have any tips for installing Newbold DerbyStick stop sensors in a BestTrack. This is the first track and timing system I've purchased. The tolerances on the per-drilled holes is such that it allows the stop sensor to move freely through the 1/4" hole. Other than just using electrical tape around the sensors to make them stick in the hole and allowing the sensor to hang freely from the 1/16" thick track, are there any suggestions for installing them more securely to the track from beneath it?

Yes, which is where I got the electrical tape idea. Unfortunately, he had never heard of the sensors being able to slide completely through the pre-drilled holes. Maybe there was a misunderstanding of my email to them. While I think that idea might work at first, I'm worried that over the course of the derby the sensors could unseat and slide out of the hole. I was looking for a more sturdy solution.